[concurrency-interest] DirectByteBuffers and reachabilityFence

Vitaly Davidovich vitalyd at gmail.com
Tue Dec 15 07:37:51 EST 2015


To be fair, no empirical evidence has been presented; there is speculation
of scenarios it may hurt but nothing concrete.

I also think the bigger obstacle to changing this behavior is getting all
the different JVM implementations modified and not really the performance
impact.

On Tuesday, December 15, 2015, Andrew Haley <aph at redhat.com> wrote:

> On 15/12/15 04:47, thurstonn wrote:
> > Is there a legitimate, empirical performance reason that  the JLS
> couldn't
> > be changed to require that reachability extend throughout the lifetime
> of an
> > instance method?
>
> That question was asked and answered on this list a couple of
> days ago.
>
> Andrew.
>
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